Determination of trace potassium permanganate in tap water by solid phase extraction combined with spectrophotometry.

ABSTRACT: A simple solid phase extraction (SPE) coupled with spectrophotometric method was developed for determination of trace permanganate (MnO₄ ^-) in water. Commercial reagent polyamined-6 powder was used as SPE stationary phase to retain MnO₄ ^- which is based on the fact that MnO₄ ^- can be adsorbed on polyamide 6 (PA-6) sorbent as water samples flow through the SPE cartridge. 3,3',5,5'-tetramethylbenzidine (TMB) were used both as eluent solution and chromogenic agent to convert the adsorbed MnO₄ ^- into Mn²⁺ and generate blue oxidized product with high molar absorptivity. Quantification of MnO₄ ^- could be obtained by spectrophotometric detection of the resulting solution flow o

SUBMITTER: Hao L 

PROVIDER: S-EPMC9958420 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature